scholarly journals The Human Resource (HR) Factor and the Impact of Construction and Demolition (C&D) Waste on Environment: An Integrated Remedial Method

2019 ◽  
Vol 8 (2S10) ◽  
pp. 535-538
Keyword(s):  
Renewable Resources ◽  
Environmental Sustainability ◽  
Management Practices ◽  
Raw Material ◽  
Construction Sector ◽  
Waste Generation ◽  
Construction And Demolition Wastes ◽  
Environmental Deprivation ◽  
Waste Management Practices ◽  
The Impact

Around the globe, all the quarters are seriously concerned about the environment. The construction sector in particular, whilst contributing to largely socio-economic advancement of a country has become a foremost exploiter of natural non-renewable resources and a polluter of the atmosphere, contributing to environmental deprivation and waste generation in the process of acquirement of raw material and its deployment. Therefore, to combat the situation of regulating construction and demolition wastes a strong and stringent organizational and governmental policy is necessitated. But for implementation of the policy, enlightening the persons involved a sound and efficient HR is essential which only can implement waste management practices successfully aligning concerned departments for environmental sustainability are discussed in the paper.

Population Growth and Waste Management in Metropolitan Lagos

2013 ◽  
Vol 11 (2) ◽  
Author(s):  
Femi O. Omololu ◽  
Akinmayowa S. Lawal
Keyword(s):  
Waste Management ◽  
Population Growth ◽  
Management Practices ◽  
Public Private Partnership ◽  
Household Waste ◽  
Waste Generation ◽  
Private Partnership ◽  
The Public ◽  
Lagos State ◽  
Waste Management Practices

This paper examines the influence of population growth on waste generation in Lagos metropolis, African’s most populous urban conglomeration. Using both quantitative and qualitative methods, the study analyses the pattern of household waste disposal, collection and transportation in Lagos State. It also examines the public-private partnership strategy adopted in waste management. The findings show that population growth significantly influences waste generation and management in Lagos metropolis. As the population increased, the volume of waste generated also increased in each LGA of Lagos State. The public-private partnership strategy has been effective in managing waste, but the Lagos State Waste Management Authority oversight was adjudged as less than satisfactory. The paper concludes that intervention is needed in terms of educating the growing population of the Lagos metropolis on the best waste management practices. It highlights the need for a more efficient and effective publicprivate partnership collaboration to solve this perennial social problem.

scholarly journals Estimation of Leachate Generated from Zimbabwe’s Municipal Solid Wastes (MSW) Landfills using a Simple Stochastic Water Balance Model

2018 ◽  
pp. 40-50
Author(s):  
Andile B. Maqhuzu ◽  
Kunio Yoshikawa ◽  
Fumitake Takahashi
Keyword(s):  
Water Balance ◽  
Waste Management ◽  
Management Practices ◽  
Balance Model ◽  
Probability Models ◽  
Municipal Solid Wastes ◽  
Predominant Component ◽  
Indiscriminate Disposal ◽  
Waste Management Practices ◽  
The Impact

Landfilling remains the predominant component in the waste management hierarchy of most developing nations. The adoption of emerging waste management technologies and the use of recycling or composting is still in its infancy. Among several inadequacies of current waste management practices in Zimbabwe is the absence of sanitary disposal of municipal solid waste (MSW) in landfills. As a result, the leachate generation rate and leachate characteristics are not routinely monitored. Such information is essential when assessing the impact of leachate on ground and surface water or a facility to which the leachate can be conveyed. Indiscriminate disposal of MSW at unsanitary dumpsites poses a double threat as the discharge of hazardous leachate to potable water sources and emissionsof toxic odours leads to further environmental degradation. Poor waste management practices are compounded by a lack of financial resources and technical capabilities. The financial incapacitation of local authorities is reflected in the fact that there are no reliable statistics on MSW generation and disposal. This lack of comprehensive data has hampered the quantification of MSW and resultant leachate. Therefore, the objectives of this study are twofold. First, we seek to predict the annual quantity of landfilled MSW, and secondly to quantify the leachate flow from Zimbabwe’s landfills. Both were achieved through the use of probability models and a stochastic water balance method supported by 10,000 Monte Carlo iterations. The calculated 90%confidence interval indicates that 13-16 million tonsof MSW havebeen landfilled, with about 41-128 million m3of leachate released since 1980. This is equivalent to a mean of 414,212tons a-1of landfilled MSW and 2.2 millionm3a-1of leachate generated, respectively.

scholarly journals Sustainable Waste Management Practices of Food Processing Units

2020 ◽  
Author(s):  
Rejani Nair
Keyword(s):  
Waste Management ◽  
Food Waste ◽  
Food Processing ◽  
Management Practices ◽  
Small Scale ◽  
General View ◽  
Standard Management ◽  
Different Types ◽  
Waste Management Practices ◽  
The Impact

<p><i>Food waste and its accumulation are becoming a critical problem. </i><i>In this context, this paper takes a look at the general view with the aim of achieving a better understanding of the different types of food waste, and tries to ponder on</i><i> the required steps or standard management practices should be taken to reduce the impact of food waste burden. The study has tried to analyse the waste management practices, cost of waste management practices etc. in small scale food processing units.</i><i></i></p>

scholarly journals Pollution from non-oil sources in the river Nun downstream of Yenegoa Town, South-South Nigeria

2014 ◽  
Vol 36 ◽  
Author(s):  
Ifeanyichukwu Clinton Ezekwe ◽  
Ngozi Nma Odu ◽  
Ayibatonye Gasa
Keyword(s):  
Water Column ◽  
Niger Delta ◽  
Management Practices ◽  
Water Source ◽  
Food Sources ◽  
Oil And Grease ◽  
Impact Of Urbanization ◽  
Waste Management Practices ◽  
Downstream Communities ◽  
The Impact

Levels of heavy metals (mercury, chromium, lead, cadmium and iron) in the water snail (Pilaovata) in the river nun downstream of Yenegoa Town, south-south Nigeria and other parameters (temperature, ph,turbidity, Total Dissolved Solids TDS, oil and grease) in the water column was investigated in an attempt to understand the impact of urbanization and poor waste management practices on downstream communities in non-oil impacted communities in the Niger delta of Nigeria. While mercury was very minute, iron and chromium where within standards for food in the snail, lead (26-27.4 mg/l), cadmium (12.11--12.16 mg/l) and arsenic (6.92-8.41mg/l) concentrations where above the standards for food sources. Turbidity in the water column was above recommended levels for drinking water, aesthetics and aquatic health. The study concludes that the area may also have lost its capacity to support good fish production, and the water source has become a dangerous source of food and water to inhabitants due to hydrocarbon and heavy metal concentrations. Government intervention and environmental education is recommended.

scholarly journals Public Perception of Solid Waste Management Practices in Nigeria: Ogun State Experience

Recycling ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 8 ◽  
Author(s):  
David O. Olukanni ◽  
Favour B. Pius-Imue ◽  
Sunday O. Joseph
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Public Perception ◽  
Management Practices ◽  
Solid Waste Management ◽  
Task Force ◽  
Ogun State ◽  
The People ◽  
Waste Management Practices ◽  
The Impact

The effects of poor solid waste management practices in many developing countries have been identified in the literature. This study focuses on understanding the public perception and attitudes of people towards local waste management practices. Five Local Government Areas in Ogun State, Nigeria, were selected based on population, landmass, spatial location, and distribution. The study used a survey that looked into the socio-demographics, household characteristics, and standard solid waste disposal practices at the household and municipal levels. Factors such as frequency of waste collection, presence of environmental task force/protection agency, and level of effectiveness of such task force/agency were all investigated. The study verified the impact of people’s attitudes towards waste management, as well as the effects of monitoring and control on the management of waste. The results showed that significant factors such as age, income, and education levels affect the perceptions, practices, and attitudes of the people towards solid waste management. An average of 36.6% of the people in the selected local governments dispose of their solid wastes at open dumps, with the majority of the residents (54.4%) still with the opinion that sanitation services are too costly and should be the prerogative of the local and state governments to carry out. These outcomes resonate that more efforts by the government and relevant stakeholders should be put into proper enforcement of environmental laws, as well as creating awareness on proper solid waste management practices in schools and public places.

Evaluation of industrial wastes management practices: Case study of the Savojbolagh industrial zone, Iran

2019 ◽  
Vol 38 (1) ◽  
pp. 44-58
Author(s):  
Mahdi Farzadkia ◽  
Sahand Jorfi ◽  
Mashaallah Nikzad ◽  
Shahram Nazari
Keyword(s):  
Waste Management ◽  
Industrial Waste ◽  
Management Practices ◽  
Generation Rate ◽  
Physical Analysis ◽  
Waste Generation ◽  
Industrial Zone ◽  
Per Capita ◽  
Waste Generation Rate ◽  
Waste Management Practices

The main objective of this research was to investigate the waste characteristics and management activities in the Savojbolagh industrial zone, Iran, in order to rank the active industries from environmental perspectives using an innovative index. First, the industrial categories with over 50 employees were identified and classified according to their production process. Then, 54 industries were selected and all industrial processes, the types and quantities of products, per capita industrial waste generation, physical analysis and management activities in terms of minimisation, storage, processing, recycling and disposal were evaluated. The required data were obtained through questioners, interviews and field observations. A scoring system was prepared for evaluation of environmental status of waste management practices. Results indicated that the total industrial waste generation rate was 67,258 kg d-1, in which 4528 belonged to hazardous waste. Furthermore, the per capita waste generation rate was 5.51 kg d-1. Plastic, paper and cardboard and metals constituted the most fractions of wastes, respectively. Food and beverage, metallic and chemical/plastic industries were the biggest waste generators. Metallic industries with total score of 502.5 and non-metalic-mineral industries with the total score of 114 were categorised as the best and worst industries in terms of waste management practices.

vThe effectiveness of environmental education on waste management practices in Mtumbane and Maheng townships in Port St. Johns, Eastern Cape

2018 ◽  
Author(s):  
◽  
Innocent Dalumzi Njiva
Keyword(s):  
Environmental Education ◽  
Waste Management ◽  
Solid Waste ◽  
Management Practices ◽  
P Value ◽  
Waste Collection ◽  
Post Intervention ◽  
Significant Difference ◽  
Waste Management Practices ◽  
The Impact

In this democratic era, two of the largest previously disadvantaged communities in Port St Johns i.e. Mtumbane and Maheng were still without waste collection services. Solid waste was dumped indiscriminately and posed risks to health and the environment. To help these communities to achieve better health, this study aimed to investigate the effectiveness of environmental education on waste management practices (WMP). The key objectives entailed establishing the knowledge, attitude and behaviour of sampled households towards WMP; evaluating the intervention of the 4Rs (reuse, reduce, recycle and recover) of WMP as taught to Grades 4 to 7 residing in the previously sampled households and assessing the impact of the intervention on WMP in these households. This study was undertaken in three phases. The pre-intervention and post-intervention phases included questionnaire administration occurring over two months. The intervention comprised the teaching of the 4Rs of WMP and the completion of a daily diary by Grades 4 to 7 residing in the previously sampled households.This study focused on statistically significant differences that were reported between pre- and post- intervention. The differences were meant to establish if the respondents had any changes in knowledge regarding solid waste management. Results showed that the use of plastic bags increased which showed a significant difference (p-value 0.034).Indiscriminate dumping of waste in Mtumbane decreased whereas in Maheng, there was no difference with their practices. Among the majority of respondents from Mtumbane, waste was regarded as something useful (p-value 0.003). The education associated with waste management for both townships increased by more than 15% and that made a significant difference (p-value 0.025). Further, more than half of the respondents in Mtumbane separated their waste. The results show that there was a significant difference (p-value 0.001) in Mtumbane and not in Maheng. This significant difference may be attributed to the distribution of adequate information as the two townships vary in distance from the municipal offices i.e. Mtumbane: three kilometres and Maheng: 15 km). It was found that the number of respondents willing to pay for waste collection services increased post-intervention (p-value 0.003). It appears that in every aspect when pre- and post-intervention were reported, there was a positive difference after the intervention phase. Four recommendations are proposed: (1) organising solid waste cleaning campaigns and environmental education in schools and communities; (2) the introduction of the 4Rs to communities; (3) the provision of communal waste skips and (4) the use of incentives to foster proper waste disposal practices. It is important for all future studies to consider a method for disseminating important information to the community in order that waste management strategies can be fully and successfully implemented.

scholarly journals A Model to Investigate the Impact of Farm Practice on Antimicrobial Resistance in UK Dairy Farms

2021 ◽  
Vol 83 (4) ◽  
Author(s):  
Christopher W. Lanyon ◽  
John R. King ◽  
Dov J. Stekel ◽  
Rachel L. Gomes
Keyword(s):  
Antimicrobial Resistance ◽  
Management Practices ◽  
Animal Husbandry ◽  
Antibiotic Use ◽  
Health Impact ◽  
Multidrug Resistant ◽  
Equation Model ◽  
Resistant Bacteria ◽  
Waste Management Practices ◽  
The Impact

AbstractThe ecological and human health impact of antibiotic use and the related antimicrobial resistance (AMR) in animal husbandry is poorly understood. In many countries, there has been considerable pressure to reduce overall antibiotic use in agriculture or to cease or minimise use of human critical antibiotics. However, a more nuanced approach would consider the differential impact of use of different antibiotic classes; for example, it is not known whether reduced use of bacteriostatic or bacteriolytic classes of antibiotics would be of greater value. We have developed an ordinary differential equation model to investigate the effects of farm practice on the spread and persistence of AMR in the dairy slurry tank environment. We model the chemical fate of bacteriolytic and bacteriostatic antibiotics within the slurry and their effect on a population of bacteria, which are capable of resistance to both types of antibiotic. Through our analysis, we find that changing the rate at which a slurry tank is emptied may delay the proliferation of multidrug-resistant bacteria by up to five years depending on conditions. This finding has implications for farming practice and the policies that influence waste management practices. We also find that, within our model, the development of multidrug resistance is particularly sensitive to the use of bacteriolytic antibiotics, rather than bacteriostatic antibiotics, and this may be cause for controlling the usage of bacteriolytic antibiotics in agriculture.

scholarly journals From Fish Waste to Value: An Overview of the Sustainable Recovery of Omega-3 for Food Supplements

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1002
Author(s):  
Vincenzo Gabriele Alfio ◽  
Cosimo Manzo ◽  
Raffaella Micillo
Keyword(s):  
Fatty Acids ◽  
Global Economy ◽  
Management Practices ◽  
Raw Materials ◽  
Food Supplement ◽  
Raw Material ◽  
Market Demand ◽  
Omega 3 ◽  
Fish Waste ◽  
The Impact

The disposal of food waste is a current and pressing issue, urging novel solutions to implement sustainable waste management practices. Fish leftovers and their processing byproducts represent a significant portion of the original fish, and their disposal has a high environmental and economic impact. The utilization of waste as raw materials for the production of different classes of biofuels and high-value chemicals, a concept known as “biorefinery”, is gaining interest in a vision of circular economy and zero waste policies. In this context, an interesting route of valorization is the extraction of omega-3 fatty acids (ω-3 FAs) for nutraceutical application. These fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have received attention over the last decades due to their beneficial effects on human health. Their sustainable production is a key process for matching the increased market demand while reducing the pressure on marine ecosystems and lowering the impact of waste production. The high resale value of the products makes this waste a powerful tool that simultaneously protects the environment and benefits the global economy. This review aims to provide a complete overview of the sustainable exploitation of fish waste to recover ω-3 FAs for food supplement applications, covering composition, storage, and processing of the raw material.

scholarly journals A revised approach for estimating informally disposed domestic waste in rural versus urban South Africa and implications for waste management

2020 ◽  
Vol 116 (1/2) ◽  
Author(s):  
Clare Rodseth ◽  
Philippa Notten ◽  
Harro von von Blottniz
Keyword(s):  
South Africa ◽  
Waste Management ◽  
Rural Areas ◽  
Management Practices ◽  
Household Waste ◽  
Management Option ◽  
Waste Generation ◽  
Domestic Waste ◽  
Illegal Dumping ◽  
Waste Management Practices

A major limitation to improved waste management in South Africa lies in the paucity of reliable waste data and the exclusion of the contribution of the informal sector from reporting. Due to the disparity in the provision of formal waste management services across households in South Africa, omission of the quantified contribution of informal management practices leads to an inaccurate representation of waste management practices in existing waste data repositories. Given the potentially adverse social and environmental consequences of unregulated waste management practices, a lack of representation thereof has the potential to underestimate impacts. As of 2015, 31% of households are reported as lacking a basic refuse removal service; however, this number cannot necessarily be applied directly to waste quantities, given the regional and socio-economic differences that occur in per capita waste generation rates. The total quantity of domestic waste in South Africa and fraction disposed informally are estimated here, taking into account differences in waste generation rates based on income and settlement type. The characterisation and quantification of unregulated waste streams is beneficial in assessing the magnitude of the problem and, where necessary, identifying mitigation action. The results obtained show that 29% (3.67 million tonnes per annum) of domestic waste generated is not collected or treated via formal management options. Of this waste, the majority (85%) is generated in rural areas. The most common waste management option for unserviced households is a private dump. An estimated 94% of households in unserviced rural areas make use of private dumps, while in unserviced urban and metro areas this decreases to 74% and 71% of households, respectively. Illegal dumping is the next most common waste management option for unserviced areas. The proportion of household waste disposed of via illegal dumping ranges from an estimated 5% for unserviced rural households to 27% in metro areas with the balance made up by ‘other’ disposal/treatment options.

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